Noise in fan air condition sounds **** dry

Either the water pump is bad or the power steering pump or the tensioner or maybe the tension on the belt is insufficient. If you have air conditioning, the bearing could be bad in that but that's a bit remote.

is it a loose fan belt this will make a scretching noise thats the cheapest thing expensive things if its a manuel could be a thrust bearing on the gear box or worse still an imput shaft bearing on gear box but i think it will be just the fan belt screeching

If it is a rattling sound the starter may be loose, the starter bendix gear might be damaged.

If it sounds like a fan, it is likely the cooling fan.

If it is squealing, it is the serpentine belt. The idlers may be worn, their bearings may be dry- they make a chirping sound at slower speeds when they are dried out. Replacement is the best option.

Air pumps can sometimes make a thumping sound, and if certain emissions valving rusts through, it can be outright exhaust noise.

If it is a high pitch whine, that is usually the alternator. It is not a good sign when they begin to whine. Alternator bearings can also fail, and the sound varies.

Water pumps and fan clutches can also fail and they tend to make softer sounds. These can be checked by checking for radial play in each item with and without serpentine belt tension applied.

If your belts are in good shape and tension is proper, you should take off the belts and srin each pulley or tensioner that turns with the belt. I think that you will find that a bearing is going bad. Try to do this when the engine is cold for that will usually make the noise more pronounced.

Be carefule of hot parts and rotating/moving belts and pulleys.

If its a whine, most likely the bearings on the idler pulley or the bearings on the ac compressor clutch.
-To trouble shoot with engine running and ac on spray wd40 on bearing area of clutch then wait a few seconds to see if sound goes away. If not then try bearing area(behind bolt of pulley) of idler. This will work as temporay fix, but ultimatly you must replace bad bearing.Do NOT spray on belt or pulley surface.

If its a squeal could be the belt is loose and needs to be replaced or dressed.
-Belt dressing can be spray directly on belt while engine is running and ac is on.

I take it you have tried a new belt. The Air-conditioner belt driven clutch and bearing repair will cost you nearly as much as a re-conditoned unit. The time, effort and agony is just not worth the trouble of going through any clutch / bearing replacement attempt. (been there done that! And had the right tools!) Ended up replacing the compressor anyway as the internal rollers of the Compressor were the actual problem.

So when you turn off the air con the noise stops ..
If yes then its the bearings in the Air Con pump which is driven by the same belt and when turning the r13 coolant around the bearings being dry and worn out will start to make the noise Same as the water pump does when it goes, but yours is Air Con Pump.
DONT TAKE IT OFF YOUR SELF. RON

timimg belts usually don't make noise, they break and the motor stops!! The noise could be coming from a bad water pump, powersteering pump, air compresser, alternater, leaky exhaust, leaky vacume lines. Check them out. Or, I don't know the condition of the engin. Has it been neglected and are the bearing going? More history would be helpful.

Yes there is a bearing in the AC clutch assembly, and the bearing can be changed with out swapping out for a whole new AC compressor unit or even taking the unit out. 
The other thing to you may want to check is the Serpentine belt tensioner. The tensioner then to break apart and or when the clutch activate put's more pressure on the system and the idler pully bearing could alsy be the problem. 
Spray some water on the fan belt whale the engine is running and see if the noise goes away and comes back as the water dry's. If the noise goes away then it's just a worn belt and need to be changed or you may want to do the quick fix and buy Fan belt dressing. 
Good luck and hope this helps

Maybe your cluch plate needs replacing, it maybe down to the rivots...the noise you can hear might be the rivots rubbing on the flywheel,Hence the clutch being lower to the floor.